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  Digital audio encodingUSPTO Application #: 20070297624Title: Digital audio encoding Abstract: Methods and apparatus, including computer program products, for digital audio encoding. A method of digital encoding includes receiving an audio source having multiple stems, and generating an enhanced audio wave file from the audio source. Generating can include routing each of the multiple stems to an individual channel in a specific format, compressing each individual channel, passing each individual channel through a limiter, passing each individual channel through an equalizer, and passing each individual channel through a phase shifter. Generating can include time aligning each individual channel, sound modeling each individual channel, and modifying an amplitude of each individual channel, processing each individual channel for sound design, movement and automation, and digitally mixing the multiple channels. Generating can include normalizing and compressing the digitally mixed multi-channel sound recording. (end of abstract) Agent: Greenberg Traurig, LLP - Boston, MA, US Inventor: Paul L. Gilman USPTO Applicaton #: 20070297624 - Class: 381119000 (USPTO) Related Patent Categories: Electrical Audio Signal Processing Systems And Devices, With Mixer The Patent Description & Claims data below is from USPTO Patent Application 20070297624. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS REFERENCE TO RELATED APPLICATIONS [0001] This application claims priority to U.S. Provisional Patent Application entitled "METHOD AND APPARATUS FOR PRODUCING SURROUND SOUND THROUGH STEREO HEADPHONES," filed on May 26, 2006, Ser. No. 60/808,931, the entire contents of which are incorporated herein. BACKGROUND [0002] The present invention relates to data processing by digital computer, and more particularly to digital audio encoding. [0003] Multi-channel audio typically refers to a variety of techniques used to expand and enrich the sound of audio playback by recording additional sound channels that can be reproduced on additional speakers. "Surround sound" generally refers to the application of multi-channel audio to channels "surrounding" an audience, i.e., generally some combination of left surround, right surround and back surround. Surround sound systems are typically used in cinema sound systems, home entertainment systems such as "home theater," video arcade games, computer games, and so forth. [0004] Surround sound specifications include, for example, 3.0 channel surround, 4.0 channel surround, 4.1 channel surround, 5.1 channel surround, 6.1 channel surround, 7.1 channel surround and 10.2 channel surround. These surround sound specifications usually distinguish between the number of discrete channels encoded in an original signal and the number of channels reproduced for playback. The number of channels reproduced for playback can be changed by using matrix encoding, for example. A distinction is also made between the number of channels reproduced for playback and the number of speakers used to reproduce the sound. SUMMARY [0005] The present invention provides methods and apparatus, including computer program products, for digital audio encoding. [0006] In general, in one aspect, the invention features a method of digital audio encoding including receiving an audio source having multiple stems, and generating an enhanced audio wave file from the audio source. [0007] In embodiments, the audio source is selected from the group consisting of six-channel audio stems, multi-track audio and stereo-mixed masters. [0008] Generating the enhanced audio wave file can include generating a digital audio source from the audio source if the audio source is analog. [0009] Generating the enhanced audio wave file further can include routing each of the multiple stems to an individual channel in a specific format, and the specific format can be pro tools. [0010] Generating the enhanced audio wave file can further include compressing each individual channel, passing each individual channel through a limiter, passing each individual channel through an equalizer, and passing each individual channel through a phase shifter. [0011] Generating the enhanced audio wave file can further include time aligning each individual channel, sound modeling each individual channel, and modifying an amplitude of each individual channel. [0012] Generating the enhanced audio wave file can further include processing each individual channel for sound design, movement and automation, and digitally mixing the multiple channels. [0013] Generating the enhanced audio wave file further can include normalizing and compressing the digitally mixed multi-channel sound recording. [0014] The method can include outputting the enhanced audio wave file. [0015] In another aspect, the invention features a digital audio encoding method including receiving a digital audio source having multiple stems, the audio source selected from the group consisting of six-channel audio stems, multi-track audio and stereo-mixed masters, and generating an enhanced audio wave file from the audio source, the generating including routing each of the multiple stems to an individual channel in a specific format. [0016] In embodiments, the specific format can pro tools. [0017] Generating can further include compressing each individual channel, passing each individual channel through a limiter, passing each individual channel through an equalizer, and passing each individual channel through a phase shifter. [0018] Generating can further include time aligning each individual channel, sound modeling each individual channel, modifying an amplitude of each individual channel, and processing each individual channel for sound design, movement and automation. [0019] Generating can further include digitally mixing the multiple channels, normalizing and compressing the digitally mixed multi-channel sound recording. [0020] The method can include outputting the enhanced audio wave file. [0021] The invention can be implemented to realize one or more of the following advantages. Continue reading... Full patent description for Digital audio encoding Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Digital audio encoding patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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